WhatsApp: The inside story — When he was living on welfare, Jan Koum's family collected food stamps a couple of blocks from the unmarked Mountain View office that now houses his messaging company, WhatsApp. An émigré at 16 from Communist Ukraine — where phones were routinely tapped …

DHS cancels national license plate tracking plan — Homeland Security Secretary Jeh Johnson on Wednesday ordered the cancelation of a plan by the Immigration and Customs Enforcement agency to develop a national license plate tracking system after privacy advocates raised concern about the initiative.